继承小实验

    public abstract class PClass
    {
        public PClass()
        {
            Console.WriteLine("Parent");
        }

        public virtual void Fun()
        {
            Console.WriteLine("P.Fun()");
        }
    }

    public class CClass:PClass
    {
        public CClass()
        {
            Console.WriteLine("Child");
        }

        public new void Fun()//如果是override则执行子类
        {
            Console.WriteLine("C.Fun()");
        }
    }

        static void Main(string[] args)
        {
            PClass p = new CClass();
            p.Fun();
            Console.ReadLine();
        }

输出内容：Parent   Child     P.Fun()